def testOnetimeDispatch(self):
d = EventDispatcher()
msg = Element(("ns", "message"))
cb = CallbackTracker()
d.addOnetimeObserver("/message", cb.call)
d.dispatch(msg)
self.assertEquals(cb.called, 1)
d.dispatch(msg)
self.assertEquals(cb.called, 1)
def test_cleanUpOnetimeEventObserver(self):
"""
Test observer clean-up after onetime named events.
"""
d = EventDispatcher()
cb = CallbackTracker()
d.addOnetimeObserver('//event/test', cb.call)
d.dispatch(None, '//event/test')
self.assertEqual(1, cb.called)
self.assertEqual(0, len(d._eventObservers.pop(0)))
def test_cleanUpOnetimeXPathObserver(self):
"""
Test observer clean-up after onetime XPath events.
"""
d = EventDispatcher()
cb = CallbackTracker()
msg = Element((None, "message"))
d.addOnetimeObserver('/message', cb.call)
d.dispatch(msg)
self.assertEqual(1, cb.called)
self.assertEqual(0, len(d._xpathObservers.pop(0)))
def test_addOnetimeObserverInDispatch(self):
"""
Test for registration of a onetime observer during dispatch.
"""
d = EventDispatcher()
msg = Element(("ns", "message"))
cb = CallbackTracker()
def onMessage(msg):
d.addOnetimeObserver("/message", cb.call)
d.addOnetimeObserver("/message", onMessage)
d.dispatch(msg)
self.assertEquals(cb.called, 0)
d.dispatch(msg)
self.assertEquals(cb.called, 1)
d.dispatch(msg)
self.assertEquals(cb.called, 1)